The contest will end when all boxes are chosen or in three days (whatever one comes first)

Waldos will be revealed after the contest is over, who ever found the Waldos will win the prize.
30% of the Total pot per Waldo Found (Up to $525,000 each)...10% of total pot will be donated to TourneyPrizes.
If you find all 3, you could win up to $1,575,000

if not all boxes are chosen and Waldo isn't found the pot will carry on over to next weeks Where's Waldo